diff --git a/ChangeLog b/ChangeLog
index e8d1da5c9..b45b98481 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -18,6 +18,9 @@ API Changes
      Found by James Cowgill.
 
 Bugfix
+   * Fix out-of-memory problem when parsing 4096-bit PKCS8-encrypted RSA keys.
+     Found independently by Florian in the mbed TLS forum and by Mishamax.
+     #878, #1019.
    * Add a check if iv_len is zero, and return an error if it is zero. reported
      by roberto. #716
    * Replace preproccessor condition from #if defined(MBEDTLS_THREADING_PTHREAD)